His description of the victory as "f**king awesome" was aired live after a nearby microphone picked up his words. CBS had a time-delay during the half time show and analysis, but not for the live gameplay.

Parents Television Council president Tim Winter has now slammed the network for airing the bad language, according to Entertainment Weekly.

"Despite empty assurance after empty assurance from the broadcast networks that they would never air indecent material, especially during the Super Bowl, it has happened again," he said. "No-one should be surprised that a jubilant quarterback might use profane language while celebrating a career-defining win, but that is precisely the reason why CBS should have taken precautions.

"Joe Flacco's use of the F-word, while understandable, does not absolve CBS of its legal obligation to prevent profane language from being broadcast - especially during something as uniquely pervasive as the Super Bowl. The instance was aired live across the country, and before the FCC's designated 'Safe Harbor' time everywhere but along the East Coast."

"Now nine years after the infamous Janet Jackson incident, the broadcast networks continue to have 'malfunctions' during the most-watched television event of the year, and enough is enough," Winter said.